Doug's Headers 66013 Seal-4-Good BBC Square Port Header Gaskets 2.125"

Doug's Headers 66013 Seal-4-Good header gaskets are designed specifically for big block Chevy (BBC) engines with square port cylinder heads. These premium gaskets feature a 2.125-inch port opening to match square port header flanges and provide a reliable seal between your headers and cylinder heads.

Key Features:

• Seal-4-Good composite gasket material for superior sealing and durability
• 2.125-inch port openings designed for BBC square port applications
• High-temperature resistant construction withstands extreme exhaust heat
• Crushable design conforms to flange imperfections for leak-free performance
• Direct replacement for OEM and aftermarket header installations

These gaskets are engineered to handle the demanding conditions of performance exhaust systems, providing a long-lasting seal that prevents exhaust leaks and maintains proper backpressure. The Seal-4-Good material resists blowout and maintains integrity through repeated heat cycles, making them ideal for street, strip, and racing applications.